Properties of Gases - Chem Labpaq

Abstract:The purpose of this experiment is to examine the properties of several gasses, which were the products of a reaction, and examine the way the gasses react under certain conditions. These conditions, such as introducing a flame to the gas as well as oxygen and CO2, caused other reactions to occur. Hypothesis:

If the gasses are correctly synthesized then there will be a clear reaction with the introduction of the flame, O2, CO2, Air, limewater, and Bromthymol indicator. Procedures:Step 1. I placed a small amount of Mossy Zn in the test tube and then added HCL. I used the rubber stopper and a pipet bulb to collect the Hydrogen gas synthesis. I filled the pipet bulb with water and placed it over the rubber stopper and waited for the H2 to completely displace the water. Once it had displaced the water, I removed the bulb and gently squeezed it into the match flame. There was a very audible “pop” and I observed the combustion of the H2. (Step 1 cont.) I filled another pipet bulb with 2/3 H2 and set it aside for later use. Step 2. I placed a small amount of Manganese into the test tube and added enough 3% H2O2 to nearly fill the test tube. Using the same rubber stopper/bulb mechanism, I collected the O2 gas that was synthesized. Once all of the water had been displaced, I lit a toothpick on fire and let it burn for a few seconds until it was extinguished. I removed the pipet bulb and inserted the glowing toothpick into the bulb and observed the glowing embers reignite momentarily. Step 3. Using the H2 bulb from Step 1, I placed the bulb over the O2 gas delivery tube and displaced the rest of the water with oxygen. I removed the pipet bulb and introduced the gas to the flame. I observed no reaction with this gas. Step 4. Using the Baking soda and white vinegar, I combined the two in the gas delivery tube and waited for the reaction to settle before attaching the stopper. I filled another pipet bulb with...

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...General Chemistry 1
Lab 4
Properties of GasesLabPaq - Properties of gases
General Chemistry
Introduction
Background
This report covers Properties of Gases and will allow me the opportunity to explore
chemical and physical properties of gases. Collection and use of these gases will also
be conducted in this lab.
Statement of
Problem
Collecting gases is a difficult process. Singling out a gas and obtaining only that gas
is the challenge we face in this experiment.
Purpose of
Experiment
The purpose of this experiment is use water, chemicals and metals along with collection tubes to extract a single gas and to store it. Then to use only that gas and see how
it responds to other testing.
Hypothesis
If the gases are correctly singled out and collected properly. We should be able to observe changes when the gases are introduced to heat or fire.
Experiment
Test tubes will be used to single out gases from two forms of metals along with an
acid and hydrogen peroxide. Baking soda, vinegar, alka seltzer, bromthymol blue and
limewater will also be used to observe the properties of gases.
Data Charts
Page 2
LabPaq - Properties of gases
General Chemistry
Analysis...

...<i>1. State the five assumptions of the Kinetic-Molecular Theory of gases.</i><br><br>a) Gases consist of large numbers of tiny particles. These particles, usually molecules or atoms, typically occupy a volume about 1000 times larger than occupied by the same number of particles in the liquid or solid state. Thus molecules of gases are much further apart than those of liquids or solids.<br><br>Most of the volume occupied by a gas is empty space. This accounts for the lower density of gases compared to liquids and solids, and the fact that gases are easily compressible.<br><br>b) The particles of a gas are in constant motion, moving rapidly in straight lines in all directions, and thus passes kinetic energy. The kinetic energy of particles overcomes the attractive forces between them except near the temperature at which the gas condenses and becomes a liquid. Gas particles travel in random directions at high speeds.<br><br>c) The collisions between particles of a gas and between particles and container walls are elastic collisions. An elastic collision is one in which there is no net loss of kinetic energy. Kinetic energy is transferred between two particles during collisions, but the total kinetic energy of the two particles remains the same, at constant temperature and volume.<br><br>d) There are no forces of attraction or repulsion between the particles of a gas. You can think of ideal gas molecules as...

...Heather Schnicker
26 October 2012
Experiment # 4
(Lab 3)
Properties of Gases
PURPOSE
The purpose of this experiment was to investigate and identify the chemical properties of the gases tested.
DATA
Gas | FLAME REACTION | GLOWING SPLINT | LIMEWATER REACTION | BROMOTHYMOL BLUE REACTION |
Hydrogen | NO REACTION | | | |
Oxygen | | BURNED BRIGHTER | | |
Hydrogen &amp; Oxygen | QUICK FLAME BURST | | | |
Carbon Dioxide | | PUT THE FIRE OUT | NO REACTION | TURNED YELLOW |
Alka Seltzer | | | BUBBLED | |
Breath | | | HUGE BUBBLES | |
CONCLUSION
Based off this experiment it made me realize that the reactions are much more different when comparing an acidic or basic solution. By doing these experiments at home also proves a point in that knowing what type of reaction to expect is a must.
QUESTIONS
A. Give two reasons why we fill the gas generator test tubes almost to the top with chemicals.
* To get as much gas as possible without any air
* Some of the chemicals could react with the oxygen that is filling up the rest of the test tube
B. What happens to the zinc in the hydrogen generation experiment?
* It dissolves
C. What happens to the manganese in the oxygen generation experiment?
* The manganese acted as a catalyst
D. Write a balanced equation for the reaction between 02 and H2?
-H2 + H2 +02= 2H20...

...The purpose of this experiment is to discover the physical and chemical properties of the studied gases. In discovering these properties it allows the student or observer the ability to identify these gases when they come into contact with them.
Procedure
Before I began the procedure I gathered all my supplies from the given list in the manual. From there I began the actual experiment and diluted the HCL placed in a test tube and then placed the ZN in the tube as well. I placed the stopper and gas delivery plastic system on the test tube and arranged the tube in the well plate. I then took the test tube filled with water inverted it and placed on top of the gas delivery system, I had the well plate in a large bowl in case of flow over. I then removed and placed my thumb over the opening so gas wouldn’t escape I lit a match and held it approx 1 cm away and allowed a small drop from the pipet onto the flame to observe the reaction. From here I took my pipet bulb and marked it in 3 equal parts with a marker. I filled the pipet with water and set it into the gas generation tube. When it was about 2/3 full of gas I removed it and set it facing down into the well holder as per the directions. I then cleaned up the other test tube disposed of the acid and washed the test tube and rubber stopper with water thoroughly. I then began the oxygen portion of the experiment where I placed some Mn into a test tube. I...

...Purpose:
The purpose of this experiment was to test and observe the physical and chemical properties of gases, and to use these properties to identify these gases when they are encountered.
Procedure:
Create a data table similar to that in the lab assistant to record your observations.
Gather the following lab equipment: Goggles, test tubes, 24 well plate, Gas assembly with copper and plastic tubing and a #00 stopper, short stem pipet, rubber stopper #00 with one hole and a pipet tip with plastic gas delivery tube, 2 small tables of AlkaSeltzer, 4mL Bromothymol blue .04%, 20 mL hydrochloric acid, 4-6 pieces of manganese metal, 4-6 pieces of mossy zinc, and 3 pipet bulbs.
Gather the following items: Matches, toothpicks, pie tin, white vinegar, 3% hydrogen peroxide, measuring spoons, drinking straw, tissue paper, and baking soda.
Read all instructions carefully before beginning your experiment.
1. Hydrogen
a. Take a small piece of Mossy Zinc from the experiment bag and place it into a test tube containing diluted HCl.
b. Take the rubber stopper with the pipet hole and gas tubing in the top and cap the test tube tightly. Take some tissue paper, a couple mm thick, and use it to help level your test tube in the well plate. Watch what happens.
c. Fill one of the wide-neck pipe bulbs with water to the top. Hold it next to the test tube containing the Zn, and quickly invert it over...

...vigorously | N/A |
Breath | N/A | N/A | Bubbles vigorously and turns cloudy | N/A |
Sarah Aguilera
June 30, 2013
Lab # 4
Properties of Gases
Purpose
The purpose of this lab was to investigate and discover the physical and chemical properties of some gases. Throughout this lab the ability to identify if and when gasses were present was enhanced.
Data
Observations
During the first step of this lab, when obtaining the hydrogen from the mossy zinc and the hydrochloric acid, it took a lot longer than I thought it would for the water in the pipet to be displaced. I was tempted to remove the stopper and add another piece of zinc and see if that would make it go faster, but I did not want to interrupt the process. It seemed the longer that the mossy zinc was exposed to the hydrochloric acid the faster it dissolved and therefore more gas was produced. When the manganese and the hydrogen peroxide were exposed to each other there was much more fizzing produced than that of the zinc and the hydrochloric acid. I was surprised (although I don’t know why) that the lime water turned cloudy when exposed to breath. It is quite simple when you think about it that when you exhale you release carbon dioxide which as shown in the above data turns the lime water cloudy.
Conclusion/Discussion
During the course of this lab I learned a lot about the generation of gases. I was somewhat confused in the...

... Human Demography:
The study of age-structured populations
Lab Preparation: Read the lab and be on time. There will be a quiz. Also, we’ll be riding a bus to the
field location. If you want to join us for lab, don’t miss the bus! Bring your lab manual, a hard notebook
or clipboard, paper and charcoal (for rubbings) and wear warm, possibly waterproof clothes. We’ll be
outside for a good portion of the lab regardless of the weather.
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Demography
Demography is the descriptive study of biological populations, including human populations.
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(sometimes referred to as vital statistics). Ecologists have perfected the analysis of demography because
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